Miriam Lilla Ornstein, M.D.
Psychiatry Physician · Cambridge, MA
Miriam Lilla Ornstein, M.D. is a psychiatry physician with a practice address in Cambridge, Massachusetts, and NPI 1104873892, issued on May 28, 2006. Check the license (Massachusetts 73547, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Miriam Lilla Ornstein
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 73547 MA
Self-reported in NPPES; status is on the state search - Practice location
- 6 Bigelow St, Cambridge, MA 02139
- Phone
- (617) 441-8750
- Enumerated
- May 28, 2006
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 6 Bigelow St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Morgan, MSN BN CSAdult Psychiatric/Mental Health Clinical Nurse Specialist1225163777
- William Morgan, PSYDClinical Psychologist1558496331
- Olga Pavleyeva, RNPsychiatric/Mental Health Registered Nurse1750047759
Verify Miriam Lilla Ornstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 73547Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average psychiatry physician in 2024
71 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Venlafaxine Hcl Er12 claims
- Dextroamphetamine-Amphetamine11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Miriam Lilla Ornstein among 2,736 psychiatry physician records in Massachusetts
Miriam Lilla Ornstein, M.D. is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2026 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
213 psychiatry physician records list a practice address in Cambridge
They are 213 of the 5,145 NPPES records with a practice address in Cambridge, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Cambridge → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Sanda Aung, MDCambridge, MA 021391679564108
- Sherry Bauman, MDCambridge, MA 021391023082708
- Wayne Brunell, MDCambridge, MA 021391740282094
- Astrid Desrosiers, MD MPHCambridge, MA 021391033109582
- Lili Gottfried, MDCambridge, MA 021391215902390
- Sanjay Gulati, MDCambridge, MA 021391316910094
- Joseph Jackson, D.O.Cambridge, MA 021391609847631
- Michael Leslie, M.D.Cambridge, MA 021391851367395
Common questions
What is Miriam Lilla Ornstein, M.D.'s NPI number?
Miriam Lilla Ornstein, M.D.'s National Provider Identifier (NPI) is 1104873892, issued on May 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Miriam Lilla Ornstein, M.D. located?
The NPPES record lists a practice address at 6 Bigelow St, Cambridge, MA, 02139. Phone: (617) 441-8750. Providers update this record themselves, so call before visiting.
How can I verify Miriam Lilla Ornstein, M.D.'s license?
NPPES lists Massachusetts license number 73547, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Miriam Lilla Ornstein, M.D. prescribe under Medicare Part D?
In 2024, Miriam Lilla Ornstein, M.D. had 71 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.